ST2L05 Datasheet, PDF (1/23 Pages) STMicroelectronics – VERY LOW QUIESCENT CURRENT DUAL VOLTAGE REGULATOR

ST2L05
VERY LOW QUIESCENT CURRENT
DUAL VOLTAGE REGULATOR
s V_O1 = 1.5, 1.8, 2.5, 2.8, 3.0, 3.3V FIXED
s V_O2 = 1.5, 1.8, 2.5, 2.8, 3.0, 3.3V FIXED OR
ADJUSTABLE FROM 1.25 TO V_I - V_DROP
s GUARANTEED OUTPUT1 CURRENT: 1A
s GUARANTEED OUTPUT2 CURRENT: 1A
s ± 2% OUTPUT TOLERANCE (AT 25°C)
s ± 3% OUTPUT TOLERANCE OVER TEMP.
s TYPICAL DROPOUT 1.1V (I_O1 = I_O2 = 1A)
s INTERNAL POWER AND THERMAL LIMIT
s STABLE WITH LOW ESR OUTPUT
CAPACITOR
s OPERATING TEMPERATURE RANGE:
0°C TO 125°C
s VERY LOW QUIESCENT CURRENT: 7mA
MAX OVER TEMP.
s AVAILABLE IN SPAK AND IN DFN 5x6mm
PACKAGE
DESCRIPTION
Specifically designed for data storage
applications, this device integrates two voltage
regulators, each one able to supply 1A and it is
assembled in SPAK and in a new 8-PIN surface
SPAK-5L
DFN
mounting package named DFN 5x6mm at 8 pins.
The first regulator block supplies 1.5V, 1.8V, 2.5V,
2.8V, 3.0V, 3.3V depending on the chosen
version. The second one may be fixed to the same
values or adjustable from 1.25V to V_I - V_DROP that
could power several kind of different
micro-controllers. Both outputs are current limited
and over temperature protected. It is worth
underlining the very good thermal performance of
the packages SPAK and DFN with only 2°C/W of
Thermal Resistance Junction to Case.
Applications are HARD DISK, CD/DVD-ROM, CD/
DVD-R/RW, COMBO (DVD-ROM+CD-R/RW).
Figure 1: Block Diagram Of Fixed/adj Version
December 2004
Rev. 6
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